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Description: A synthetic narcotic, fentanyl has been detected in an increasing number of illicit drug overdose deaths in Metro Vancouver. Many of the people who died were recreational and/or occasional users and don’t appear to have known they were ingesting fentanyl, as it is easily hidden in other drugs.

Photos: Massive protests return to Cairo’s Tahrir Square

Thousands of Egyptian protesters gather in Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. Two years after Egypt’s revolution began, the country’s schism was on display Friday as the mainly liberal and secular opposition held rallies saying the goals of the pro-democracy uprising have not been met and denouncing Islamist President Mohammed Morsi.

Photograph by: Khalil Hamra
, AP

It’s been two years since former Egyptian president Hosni Mubarak was overthrown, but the North African country is still struggling to fulfill the hopes of the Arab Spring. Protesters returned to famed Tahrir Square Friday in a rally that saw violent clashes with riot police. Take a look.

Thousands of Egyptian protesters gather in Tahrir Square, Cairo, Egypt, Friday, Jan. 25, 2013. Two years after Egypt’s revolution began, the country’s schism was on display Friday as the mainly liberal and secular opposition held rallies saying the goals of the pro-democracy uprising have not been met and denouncing Islamist President Mohammed Morsi.